[KEYHANDLING] Remove any code that is obsoleted thanks to the new keyhandling
Orca has a lot of old, hacky code related to the Orca modifier (search for "xmodmap" in orca.py) and to whether or not we should and ultimately did "consume" a particular input event.
I am really, really hoping that at least some of this code is obsolete thanks to the new keyhandling support.
@mgorse: Can you please let me know what the status is on this front? Thanks!